mdadm: created raid has one disc more than configured

[Andreas Jung <lists@zopyx.com>]

I created a raid devices using:

mdadm --create /dev/md0 --level 5 -3 /dev/hdc1 /dev/hde1 /dev/hdf1

mdadm --detail /dev/md0 gives me:

/dev/md0:
       Version : 00.90.00
 Creation Time : Sun Apr 18 11:36:04 2004
    Raid Level : raid5
    Array Size : 117231104 (111.80 GiB 120.04 GB)
   Device Size : 58615552 (55.90 GiB 60.02 GB)
  Raid Devices : 3
 Total Devices : 4
Preferred Minor : 0
   Persistence : Superblock is persistent

   Update Time : Sun Apr 18 11:36:04 2004
         State : dirty, no-errors
Active Devices : 2
Working Devices : 3
Failed Devices : 1
 Spare Devices : 1

        Layout : left-symmetric
    Chunk Size : 64K

Rebuild Status : 80% complete

   Number   Major   Minor   RaidDevice State
      0      22        1        0      active sync   /dev/hdc1
      1      33        1        1      active sync   /dev/hde1
      2       0        0        2      faulty
      3      33       65        3      spare   /dev/hdf1
          UUID : 84cf502e:9d757c6a:1855fa04:5c4e9bcd
        Events : 0.1

The output say that I have four devices although only three were
specified at creation time.

Any ideas? (using mdadm 1.5, RH 9,latest Kernel).

-aj


--

Andreas Jung
--------------------------------
www.zopyx.com Software-Entwicklung und Consulting Andreas Jung
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